Cleaning machine



FIG. 1 is a front view of a cleaning machine, showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is bottom view thereof;

FIG. 7 is a perspective view thereof; and,

FIG. 8 shows the use of the cleaning machine of my new design. The broken line showing of the use of the cleaning machine is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a cleaning machine, as shown and described. 